Thin aluminium flakes
US9856385B2 · kind B2 · utility
0Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2014 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Dec 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12014
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention relates to aluminum flakes having a thickness between 7 and 9 nm, coating compositions containing them and the use of the coating compositions for forming (security) products. When the compositions of the present invention are used in coating a hologram the obtained products show an extremely bright OVD image and extremely strong rainbow effect, high purity and contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.